IAA RAS IAA Minor Planet Database

285571 (2000 PQ9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4324411214 ± 8.16e-10
Semi-major axis (a)1.9035657241 AU ± 5.85e-10
Inclination (i)13.48266244° ± 1.16e-06
Long. of Asc. Node (Ω)297.16245353° ± 7.40e-07
Arg. of Perihelion (ω)7.05697041° ± 3.81e-06
Mean Anomaly (M)231.96152491° ± 1.27e-06
Mean Motion (n)0.3752843568°/day ± 1.73e-10
Perihelion dist (q)1.08038563 AU ± 1.59e-09
Aphelion dist (Q)2.72674582 AU ± 1.76e-09
Orbital Period2.62634524 yr ± 1.21e-09
Physical Parameters
H (abs. magnitude)18.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.478″
Uncertainty0
Orbit TypeAmor
MOID0.064547 AU
Observations Used7147
Radar Obs Used1
Oppositions13
Arc Total2000-2021
First Observation Used2000-08-09
Last Observation Used2024-12-06
Observations (13272)
Date Type RA Dec Mag Band Observatory
2021-06-20 01:04:02 S 17 00 36.461 -68 49 19.06 – V C57
2021-06-20 01:04:02 s 1 -141035.83 4 +337266.97 4140.0 – C57
2021-06-20 01:14:02 S 17 00 38.028 -68 49 18.41 – V C57
2021-06-20 01:14:02 s 1 -141313.93 4 +336914.74 2460.0 – C57
2021-06-20 01:24:02 S 17 00 39.862 -68 49 17.51 – V C57
2021-06-20 01:24:02 s 1 -141591.61 6 +336561.55 9480.0 – C57
2021-06-20 01:34:02 S 17 00 41.782 -68 49 18.48 – V C57
2021-06-20 01:34:02 s 1 -141868.88 0 +336207.39 5200.0 – C57
2021-06-20 01:44:02 S 17 00 43.555 -68 49 15.10 – V C57
2021-06-20 01:44:02 s 1 -142145.72 3 +335852.28 9610.0 – C57
2021-06-20 01:54:02 S 17 00 45.410 -68 49 13.48 – V C57
2021-06-20 01:54:02 s 1 -142422.14 4 +335496.20 2710.0 – C57
2021-06-20 02:04:02 S 17 00 47.093 -68 49 12.86 – V C57
2021-06-20 02:04:02 s 1 -142698.14 1 +335139.16 4490.0 – C57
2021-06-20 02:14:02 S 17 00 49.171 -68 49 10.92 – V C57
2021-06-20 02:14:02 s 1 -142973.71 4 +334781.15 4960.0 – C57
2021-06-20 02:24:02 S 17 00 50.849 -68 49 09.62 – V C57
2021-06-20 02:24:02 s 1 -143248.86 0 +334422.18 4100.0 – C57
2021-06-20 02:34:02 S 17 00 52.394 -68 49 07.97 – V C57
2021-06-20 02:34:02 s 1 -143523.57 8 +334062.25 1910.0 – C57
2021-06-20 03:04:02 S 17 00 57.898 -68 49 06.53 – V C57
2021-06-20 03:04:02 s 1 -144345.14 8 +332976.65 7330.0 – C57
2021-06-20 03:14:02 S 17 00 59.770 -68 49 04.55 – V C57
2021-06-20 03:14:02 s 1 -144618.13 9 +332612.85 9780.0 – C57
2021-06-20 03:24:02 S 17 01 01.481 -68 49 02.42 – V C57
2021-06-20 03:24:02 s 1 -144890.69 4 +332248.09 880.0 – C57
2021-06-20 03:34:02 S 17 01 03.221 -68 49 00.26 – V C57
2021-06-20 03:34:02 s 1 -145162.81 2 +331882.35 620.0 – C57
2021-06-20 03:44:02 S 17 01 05.045 -68 48 59.65 – V C57
2021-06-20 03:44:02 s 1 -145434.49 0 +331515.64 9010.0 – C57
2021-06-20 03:54:02 S 17 01 06.847 -68 48 58.00 – V C57
2021-06-20 03:54:02 s 1 -145705.72 9 +331147.97 6030.0 – C57
2021-06-20 04:14:02 S 17 01 10.330 -68 48 56.20 – V C57
2021-06-20 04:14:02 s 1 -146246.87 9 +330409.70 5950.0 – C57
2021-06-20 04:34:02 S 17 01 14.237 -68 48 53.78 – V C57
2021-06-20 04:34:02 s 1 -146786.24 8 +329667.55 370.0 – C57
2021-06-20 04:44:02 S 17 01 15.785 -68 48 52.67 – V C57
2021-06-20 04:44:02 s 1 -147055.26 1 +329295.02 500.0 – C57
2021-06-20 04:54:02 S 17 01 17.530 -68 48 52.34 – V C57
2021-06-20 04:54:02 s 1 -147323.82 5 +328921.51 9240.0 – C57
2021-06-20 05:04:02 S 17 01 19.397 -68 48 49.54 – V C57
2021-06-20 05:04:02 s 1 -147591.93 7 +328547.02 6580.0 – C57
2021-06-20 05:14:02 S 17 01 21.221 -68 48 47.99 – V C57
2021-06-20 05:14:02 s 1 -147859.59 6 +328171.57 2520.0 – C57
2021-06-20 05:24:02 S 17 01 22.898 -68 48 45.61 – V C57
2021-06-20 05:24:02 s 1 -148126.80 0 +327795.13 7050.0 – C57
2021-06-20 05:34:02 S 17 01 24.722 -68 48 45.22 – V C57
2021-06-20 05:34:02 s 1 -148393.54 8 +327417.72 180.0 – C57
2021-06-20 05:44:02 S 17 01 26.477 -68 48 44.35 – V C57
2021-06-20 05:44:02 s 1 -148659.83 8 +327039.33 1890.0 – C57
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-07-23 05:30:00 67479907 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)